Question

Evaluate each expression.
6! :
31 - 2! =
91

Answer 1

Explanation:

this is simple this is permutation and combination

6!= 6x5x4x3x2x1=720

6!= 720

3! •2!= (3x2x1)•(2x1)

3!•2!= 6•2

3!•2!=6x2= 12

3!•2!= 12

6!/3!= (6x5x4x3x2x1) / (3x2x1)

6!/3!=720/6

6!/3!=120